b517d5762559f241ede30f66292381ef5809d9ecb75eba575e2d6e4504d944c7

General

Target

b517d5762559f241ede30f66292381ef5809d9ecb75eba575e2d6e4504d944c7.exe
Size

134KB
MD5

82737040421b7a437182261bec6e5fda
SHA1

57b95b4f5b666426978e5655917850b23d44686e
SHA256

b517d5762559f241ede30f66292381ef5809d9ecb75eba575e2d6e4504d944c7
SHA512

30b5378db38f35488d767ee56b220b311872cafa7a7aeca50ae8e811069ce86ad95ce72d9bbfd9ce40913b66db6349401a571f156e830f879e7cc5cc96989dad
SSDEEP

1536:cGYU/W2/HG6QMauSV3ixJHABLrmhH7i99ROOg00GqMIK7aGZh3EIL:cfU/WF6QMauSuiWNi97Ol0007NZ6IL

Score

9^/10

Malware Config

Signatures

UPX dump on OEP (original entry point) 6 IoCs

resource	yara_rule
behavioral1/memory/1968-0-0x0000000001070000-0x0000000001098000-memory.dmp	UPX
behavioral1/files/0x0037000000015ce3-2.dat	UPX
behavioral1/memory/1968-4-0x0000000000140000-0x0000000000168000-memory.dmp	UPX
behavioral1/memory/2464-7-0x0000000001190000-0x00000000011B8000-memory.dmp	UPX
behavioral1/memory/1968-8-0x0000000001070000-0x0000000001098000-memory.dmp	UPX
behavioral1/memory/1968-9-0x0000000001070000-0x0000000001098000-memory.dmp	UPX

Deletes itself 1 IoCs

pid	Process
2620	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2464	wuauclt.exe

Loads dropped DLL 1 IoCs

pid	Process
1968	b517d5762559f241ede30f66292381ef5809d9ecb75eba575e2d6e4504d944c7.exe

UPX packed file 6 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1968-0-0x0000000001070000-0x0000000001098000-memory.dmp	upx
behavioral1/files/0x0037000000015ce3-2.dat	upx
behavioral1/memory/1968-4-0x0000000000140000-0x0000000000168000-memory.dmp	upx
behavioral1/memory/2464-7-0x0000000001190000-0x00000000011B8000-memory.dmp	upx
behavioral1/memory/1968-8-0x0000000001070000-0x0000000001098000-memory.dmp	upx
behavioral1/memory/1968-9-0x0000000001070000-0x0000000001098000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Window Update = "\"C:\\ProgramData\\Update\\wuauclt.exe\" /run"	b517d5762559f241ede30f66292381ef5809d9ecb75eba575e2d6e4504d944c7.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1968 wrote to memory of 2464	1968	b517d5762559f241ede30f66292381ef5809d9ecb75eba575e2d6e4504d944c7.exe	28
PID 1968 wrote to memory of 2464	1968	b517d5762559f241ede30f66292381ef5809d9ecb75eba575e2d6e4504d944c7.exe	28
PID 1968 wrote to memory of 2464	1968	b517d5762559f241ede30f66292381ef5809d9ecb75eba575e2d6e4504d944c7.exe	28
PID 1968 wrote to memory of 2464	1968	b517d5762559f241ede30f66292381ef5809d9ecb75eba575e2d6e4504d944c7.exe	28
PID 1968 wrote to memory of 2620	1968	b517d5762559f241ede30f66292381ef5809d9ecb75eba575e2d6e4504d944c7.exe	29
PID 1968 wrote to memory of 2620	1968	b517d5762559f241ede30f66292381ef5809d9ecb75eba575e2d6e4504d944c7.exe	29
PID 1968 wrote to memory of 2620	1968	b517d5762559f241ede30f66292381ef5809d9ecb75eba575e2d6e4504d944c7.exe	29
PID 1968 wrote to memory of 2620	1968	b517d5762559f241ede30f66292381ef5809d9ecb75eba575e2d6e4504d944c7.exe	29

C:\Users\Admin\AppData\Local\Temp\b517d5762559f241ede30f66292381ef5809d9ecb75eba575e2d6e4504d944c7.exe
"C:\Users\Admin\AppData\Local\Temp\b517d5762559f241ede30f66292381ef5809d9ecb75eba575e2d6e4504d944c7.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1968
- C:\ProgramData\Update\wuauclt.exe
  "C:\ProgramData\Update\wuauclt.exe" /run
  2⤵
  - Executes dropped EXE
  PID:2464
- C:\windows\SysWOW64\cmd.exe
  "C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\b517d5762559f241ede30f66292381ef5809d9ecb75eba575e2d6e4504d944c7.exe" >> NUL
  2⤵
  - Deletes itself
  PID:2620

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\ProgramData\Update\wuauclt.exe

Filesize
134KB

MD5
7f8dd298d3f0ee8d88db346fc6668941

SHA1
9dd53d0905b201479a2be35f7fd8f2372392dd89

SHA256
83be84040f2e6f8494fdad3889fe0ca506ae05f7135467be52aaf1826f76b5f2

SHA512
e126e7350cda358c589fd13cd54d1b7e2c1dcc5d0c78488508439d21ddc01e10624d0d91fcd5f267217fbd685cf0fbf4f47351c3946c7a15c114c180e794e4b5

Download Submit
memory/1968-0-0x0000000001070000-0x0000000001098000-memory.dmp

Filesize
160KB

Download
memory/1968-4-0x0000000000140000-0x0000000000168000-memory.dmp

Filesize
160KB

Download
memory/1968-8-0x0000000001070000-0x0000000001098000-memory.dmp

Filesize
160KB

Download
memory/1968-9-0x0000000001070000-0x0000000001098000-memory.dmp

Filesize
160KB

Download
memory/2464-7-0x0000000001190000-0x00000000011B8000-memory.dmp

Filesize
160KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads